Clasp brake-rigging.



T. L. BURTON. CLASP BHAKE BIGGING. Arrmourox mm s221211, 101s.

WITNESSES Patented lily 26, 1914 INVEIITOR @wf/a UNITED sTAQIEs THOMAS L. BURTON-,ion ,nursery-nen, rnNNsYLvANnA, IAssIriNoia, To .THE wEsrINe- House. A1B, BRAKE COMPANY, or WILMERDING, PENNSYLVANIA, A CORPORATION on PnNNsYLvANIA,

Specication Of Letters Patent.

cnesr-qsnsnnanieemei To all 'whom it may concern Be it known that I, THOMAS L. BnR'roN, a citizen of the United States, residing' at Pittsburgh, in the county of Allegheny and State of Pennsylvania, have invented a certain `new and useful Improvement in Clasp Brake-Rigging, of which improvement the following is a specification.

This invention relates to railway bra-ke rigging of the clasp type, in which 'bralge shoes are applied to both sides of each p air of truck wheels, the principal object being to provide an improved construction of this type in which a double set of'truck levers and rods are employed, one at each side of the truck, and having a pair of intermediate levers near the center of the truck, with equalizers connected tothe respective intermediate levers for actuating the two sets of truck rods and levers. a

In the accompanying drawingsz'Figure 1 is a plan of one form of clasp type brake applied to a four wheeled truck, and embodying my improvement; and Fig. 2 a

longitudinal sectional view of the same,

showing one set of truck rods and levers ,in elevation.

According to the construction shown in the drawings, the improvement is applied to a four wheeled truck having brake beams, B1, B2, B8 and B4, at both sides of each pair of wheels, i and two sets of truck levers 1, 2, 3, and 4, with coupling 'rods 8 and 9, these parts being duplicated upon opposite sides of the truck. The live trucky levers, 2 Vand 3, are pivotally connected at their lower ends to the brake beams, Bland B3, having brake. shoes at their ends, supported by hangers, H, while the dead truck levers, 1 and 4, are pivotally connected to the respective brake beams, B1 and B4, and carry brake shoes at their lower ends.

According to my presentv improvement, a pair of intermediate levers, comprising the floating lever,5, and fixed fulcrum lever, 6, connected by rod, 7 are located upon opposite sides of the ,center plate C, said levers being connected by the respective links, 13 and 14, with the equalizers, l5 and 16, which are attached at their opposite ends to the rods, 10 and 11, respectively, for actuating the two sets of truck levers upon both sides of the truck. By means of this construction, including the cqualizers, 15 and 16, the design is simplified and the number of parts reduced.`

The power is applied to the ioating lever, 5, by a brake cylinder pull rod,- 12, which .may be split to provide an Opening through which the lever, 6, and the equalizer, 16, may extend in order that all of these parts may be located in substantially the same horizontal'plate if desired. The power is then transmitted from the intermediate levers, 5 and 6, in opposite directions through the respective equalizer bars, 15 and 16, to the truck levers, and applies all of the brake shoes with equalized pressure.

Having now described my invention,

Awhat I claim as new and desire to secure by Letters Patent is:

1. In a brake rigging for pivoted trucks having a, plurality of pairs of wheels, the combination with brake shoes applied to both sides of each pair of wheels, and a double set of truck levers and rods, one at each side of the truck, of equalizers 'con- Patented May 26,1914.

nected to said truck levers, and an intermediate fioating lever located near the center of the truck and having connections extending in opposite direction to said equalizers.

2. Ina brake rigging for pivoted trucks having a plurality of pairs of wheels, the combination with brake shoes applied to both sides of eachA air of wheels, and a double set of truck evers and rods, one at each side of the truck, of equalizers connected to said truck levers, van intermediate l floating lever having a link connection to one of said equalizer-s, another intermediate 'lever having a link connection to another equalizer, and a rod connecting, said inter-` I mediate levers.

3. In a brake rigging for pivoted trucks having a plurality of pairs of wheels, the combination with brake shoes a plied to both sides of each pair of whee s, and a double set of truck levers and rods, vone at other equalizer, and a rod connecting said each side of the truck, of equalizers conintermediate` levers. 10 nected to said truck levers7 an intermediate In testimony whereof I have hereunto set floating lever having a link connectin its my hand.

middle portion to the central point o one THOMAS L. BURTON. of vsaid equalizers, an intermediate lever Witnesses:

having a. xed fulerum at one end and a J. SNOWDEN BELL,

link connection to the central point of an- EDWARD A. 'Winer-IT. 

